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Mean Well SFTN02M-05 DC-DC Converter - 2W - 10.8~13.2V in 5V out 400mA

Name: Mean Well SFTN02M-05 DC-DC Converter - 2W - 10.8~13.2V in 5V out 400mA
Brand: Mean Well
SKU: SFTN02M-05
Price: 5.94 USD
Availability: InStock

SKU SFTN02M-05

$5.94 USD

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Overview

SFTN02M-05 is the 5V output model of this series: rated power 2W, typical efficiency 80%.

SFTN02 series is 2W isolated and unregulated module type DC-DC converter with SMD package. It features international standard pins, a high efficiency up to 82%, wide working temperature range -40~+100℃, 3KVDC I/P-O/P isolation voltage, compliance to BS EN/EN55032 radiated Class A without additional components, short circuit protection, etc. The models account for different input voltage 5V/12V/24V±10%, and various output voltage, 5V/12V/15V for single output which are suitable for all kinds of systems, such as industrial control, telecommunication field, distributed power architecture, and so on.

Features

SMD package with industry standard pinout
Operating temperature range -40 ~ +100℃
Comply to BS EN/EN55032 radiated Class A without additional components
High efficiency up to 82%
Protection: Short circuit
3KVDC I/O isolation
Low cost
Optional reel packing
3 years warranty

Specifications

SFTN02M-05Specifications from the official datasheet (2026-09-15 edition)

INPUT

INPUT VOLTAGE (RANGE): Normal 12V (10.8 ~ 13.2V)
INPUT CURRENT NO LOAD: 25mA
INPUT CURRENT FULL LOAD: 208mA
VOLTAGE RANGE: 10.8 ~ 13.2Vdc
SURGE VOLTAGE (100ms max.): 5Vin models : 9Vdc 12Vin models : 16Vdc 24Vin models : 30Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 5Vin models: 800mA Slow-Blow Type 12Vin models: 300mA Slow-Blow Type 24Vin models: 170mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

OUTPUT VOLTAGE: 5V
OUTPUT CURRENT: 40 ~ 400mA
EFFICIENCY (TYP.): 80%
CAPACITOR LOAD (MAX.): 220μF
VOLTAGE ACCURACY: ±2.0%
RATED POWER: 2W
RIPPLE & NOISE^Note.2: 75mVp-p
LINE REGULATION^Note.3: 1.2% for 1% input variation
LOAD REGULATION^Note.4: ±8%
SWITCHING FREQUENCY (Typ.): 100KHz

PROTECTION

SHORT CIRCUIT: Standard model: 0.5 second max. Optional models (SC-suffix): Continuous

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: Standard model: -40 ~ +100℃ (Refer to "Derating Curve") ; Optional models (SC-suffix): -40 ~ +105℃
CASE TEMPERATURE: +105℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (0 ~ 90℃)
SOLDERING TEMPERATURE: 1.5mm from case of 1 ~ 10sec./240℃ max.
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC ( Note.5,6)

SAFETY STANDARDS: EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVDC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE (Typ.): 80pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032(CISPR32) N/A
Radiated BS EN/EN55032(CISPR32) Class A
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, ±8KV air, Level 2±4KV contact
Radiated Susceptibility BS EN/EN61000-4-3 Level 2, 3V/m
EFT/Bursts BS EN/EN61000-4-4 Level 1, 0.5KV at power
Surge BS EN/EN61000-4-5 Level 2, 0.5KV Line-Line
Conducted BS EN/EN61000-4-6 Level 2, 3V(e.m.f.)
Magnetic Field BS EN/EN61000-4-8 Level 1, 1A/m

Parameter	Standard	Test Level
Conducted	BS EN/EN55032(CISPR32)	N/A
Radiated	BS EN/EN55032(CISPR32)	Class A

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, ±8KV air, Level 2±4KV contact
Radiated Susceptibility	BS EN/EN61000-4-3	Level 2, 3V/m
EFT/Bursts	BS EN/EN61000-4-4	Level 1, 0.5KV at power
Surge	BS EN/EN61000-4-5	Level 2, 0.5KV Line-Line
Conducted	BS EN/EN61000-4-6	Level 2, 3V(e.m.f.)
Magnetic Field	BS EN/EN61000-4-8	Level 1, 1A/m

OTHERS

MTBF: 880Khrs min. MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 15.24*10.9*7.1mm (0.6*0.43*0.28 inch)
CASE MATERIAL: Non-Conductive black plastic (UL 94V-0 rated)
PACKING: Standard : 1.2g ; 32pcs/per tube, 3840pcs/120 tube/per carton Optional : 1.2g ; 500pcs/per reel, 2500pcs/5 reel/per carton

Test conditions and notes6

1.All parameters are specified at normal input(L:5Vdc, M:12Vdc, N:24Vdc), rated load, 25℃ 70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
3.Line regulation is measured from low line to high line at rated load.
4.Load regulation is measured from 10% to 100% rated load.
5.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”(as available on http://www.meanwell.com)
6.An external input filter capacitor is required if the module has to meet BS EN/EN61000-4-4, BS EN/EN61000-4-5. The filter capacitor Power Mate suggest: 470μF/100V.

Technical drawings

SFTN02M-05 Mechanical Specification — Mechanical Specification

SFTN02M-05 Pin Assignment — Pin Assignment

SFTN02M-05 Reflow Soldering Curve — Reflow Soldering Curve

Typical applications

Downloads

Certificates3

Mean Well SFTN02-DETN02-EMC Certificate PDF Download

Mean Well SFTN02-DETN02-CE-dec Certificate PDF Download

Mean Well SFTN02-DETN02-UK-dec Certificate PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SFTN02M-05 to get 5V from a 10-13VDC source in industrial electronics?

Yes, this model is intended for a 10.8-13.2VDC input and provides a constant 5V output. Its 2W rating and listed 400mA output current make it suitable for low-power 5V electronics rather than larger power demands.

Is the SFTN02M-05 suitable for embedded controllers or interface boards that need 5V?

It can be a fit when the system source is 10.8-13.2VDC and the downstream electronics require a regulated 5V rail. Because the converter is rated at 2W, it is best used for small control, logic, or interface sections.

Can this converter support low-power 5V instrumentation inside automation equipment?

Yes, for applications that need a constant 5V output and stay within the 2W capacity of the unit. Its compact dimensions of 15.24 × 10.9 × 7.1 mm also make it practical for tightly packed equipment.

How does the SFTN02M-05 compare with other SFTN02M models?

The listed SFTN02M models all have a 2W power rating, but they differ by output. The SFTN02M-05 is 5V at 400mA, the SFTN02M-12 is 12V at 167mA, and the SFTN02M-15 is 15V at 133mA.

Can the SFTN02M-05 be used where temperature conditions vary widely?

The operating temperature range is -40°C to +100°C, which supports a wide ambient range. No IP rating is listed in the provided specs, so the data does not define whether it is suitable for outdoor or washdown environments.

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